RADIUM Engineering Type-A Radiator Cap

The RADIUM Engineering Type-A Radiator Cap is a performance radiator cap, also called a coolant pressure cap. It is built for upgraded cooling systems. A higher-pressure cap raises the coolant's boiling point. That gives extra margin against overheating and helps prevent air-pocket cavitation at the water pump.

Key Features:

• Stamped stainless steel construction for durability
• Premium silicone sealing elements instead of the natural rubber gaskets used on OEM caps, for long-lasting sealing
• Black electroplate finish
• Type-A design, the cap style required by RADIUM Engineering coolant expansion tanks
• Calibrated pressure-relief spring to manage coolant boiling temperature safely
• Sized for mini (32mm ID) radiator necks only

RADIUM Engineering designs its products in-house and tests and validates them. This cap is a durable, higher-pressure alternative to a stock radiator cap. It can be fitted to a radiator or to a coolant expansion tank that uses the Type-A style cap.